单词	Roman alum
释义	Roman alum noun : alum crystallized in cubes especially : alum formerly made from alunite at Tolfa near Rome that was reddish because of a very small amount of iron oxide though otherwise very pure Word History First Known Use 1653, in the meaning defined above
随便看	uncouthness uncouthnesses uncovenanted uncover uncovered uncovering uncovers uncowed uncowl uncowled uncowling uncowls uncoy uncracked uncrate uncrated uncrates uncrating uncrazier uncraziest uncrazy uncreased uncreate uncreated uncreates

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